"I heard Mu'awiyah say: 'I heard the Messenger of Allah ﷺ, when he heard the Mu'adhdhin, repeating what he said.'" (Using translation from Nasāʾī 676)  

سَمِعْتُ رَسُولَ اللهِ ﷺ وَسَمِعَ الْمُؤَذِّنَ فَقَالَ «مِثْلَ مَا قَالَ»  

[Machine] "That Muhammad is the messenger of Allah, and he testified twice, then he said, 'Thus Mu'awiyah bin Abu Sufyan narrated to me from the saying of the Messenger of Allah.'"  

أَنَّ مُحَمَّدًا رَسُولُ اللهِ فَتَشَهَّدَ اثْنَتَيْنِ ثُمَّ قَالَ هَكَذَا حَدَّثَنِي مُعَاوِيَةُ بْنُ أَبِي سُفْيَانَ عَنْ قَوْلِ رَسُولِ اللهِ ﷺ  

[Machine] I was with Mu‘āwiyah when his caller to prayer gave the adhān. Mu‘āwiyah repeated what the caller said, until when he said, “Come to prayer,” he said, “There is no might nor power except with Allah.” Then when he said, “Come to success,” he said, “There is no might nor power except with Allah.” After that, he repeated what the caller said, then said, “I heard the Messenger of Allah ﷺ say that.”  

إِنِّي عِنْدَ مُعَاوِيَةَ إِذْ أَذَّنَ مُؤَذِّنُهُ فَقَالَ مُعَاوِيَةُ كَمَا قَالَ الْمُؤَذِّنُ حَتَّى إِذَا قَالَ حَيَّ عَلَى الصَّلَاةِ قَالَ لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ فَلَمَّا قَالَ حَيَّ عَلَى الْفَلَاحِ قَالَ لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ وَقَالَ بَعْدَ ذَلِكَ مَا قَالَ الْمُؤَذِّنُ ثُمَّ قَالَ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ ذَلِكَ